The Intermatic Control Center with T104M and 300W Transformer combines timer-based control with transformer capacity for compatible pool and spa equipment installations. The T104M mechanical timer supports scheduled operation, while the 300-watt transformer is intended for supported low-voltage loads where additional capacity is required compared with smaller transformer configurations.Use this control center when the installation requires the correct combination of timing control, enclosure style, voltage compatibility, and transformer output. Always confirm total connected load, wiring requirements, and application fit before ordering. Intermatic control center with T104M timer mechanism Includes 300-watt transformer for compatible low-voltage equipment Designed for pool and spa equipment control setups Useful for scheduled operation and power management Verify part number T10004RT3 before purchase